Home / 90,149.74-124,403.54-49,863.38

Finding the Fourth Proportional to 90,149.74, 124,403.54 and 49,863.38

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Solution

The fourth proportional to 90,149.74, 124,403.54 and 49,863.38 is: 68,809.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,149.74 : 124,403.54 = 49,863.38 : x
  2. Step 2: Convert to fraction form
    90,149.74/124,403.54 = 49,863.38/x
  3. Step 3: Cross multiply
    90,149.74x = 124,403.54 × 49,863.38
  4. Step 4: Simplify right side
    90,149.74x = 6,203,180,117.03
  5. Step 5: Solve for x
    x = 6,203,180,117.03/90,149.74
  6. Step 6: Final answer
    x = 68,809.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.